Winehouse said that traces of the prescription drug Librium, which is used to fight anxiety and symptoms of alcoholism, were found in her body after her death on July 23. The singer’s family added that toxicology reports showed there was also alcohol in her bloodstream, although it is unclear how that contributed to her death. “Everything Amy did, she did to excess,” Winehouse told Cooper. “She drank to excess and did detox to excess.”

Mitch Winehouse continued by saying that he regretted his daughter – who would suffer seizures and lose consciousness in the period before her death – was trying to kick alcoholism without a doctor’s help. “The periods of abstinence were becoming longer, and the periods of drinking were becoming shorter,” he said. “It was headed in the right direction.”

A full inquest into the singer’s death, her father also revealed during the interview, will begin next month.